"You don't get to survive as long as Stuffit without picking up a few tricks along the way either. The application itself has a surprisingly spritely looking drag-and-drop front end, with built-in disk image mounting, virus scanning and the ability to map different file types to different archiving applications. Very generous. You can also set archives to extract to user-defined folders in preference to the default – which is the same place as the original archive.
SmithMicro, the makers of Stuffit, don't give away the Expander free for ideological reasons. They give it away to enhance the value of their commercial products. It's a savvy move and one that's worked for many years. If you have one extraction tool on your machine, it might as well be Stuffit Expander – it handles most archive formats, looks great and works unobtrusively. As for archiving files, though, you don't really need this functionality – your Mac does that job pretty well all on its own."